<!DOCTYPE html>
<html>
 <head>
  <meta charset="UTF-8">
  <title>dir() selector</title>
  <style>
   :not(:dir(rtl)) + div { color: blue }
   div { color: lime; text-align: left; }
  </style>
  <script type="text/javascript">
function switchDir()
{
    theDiv = document.getElementById("d");
    if (theDiv.dir == "ltr") {
        theDiv.dir = "rtl";
    } else if (theDiv.dir == "rtl") {
        theDiv.dir = "ltr";
    }
}
  </script>
 </head>
 <body onload="switchDir()">
  <div id="d" dir="ltr">This element is rtl.</div>
  <div>This element has default direction.</div>
 </body>
</html>
